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Afeela 1

The Afeela 1 was an electric sedan from Sony Honda Mobility, the Sony-Honda joint venture, revealed at CES 2025 and canceled in March 2026 before deliveries began.

Afekan (crater on Titan)

Afekan is a 115 km diameter impact crater on Titan at 25.8°N, 200.3°W, IAU-named in 2008 for a New Guinea goddess; type example of the Afekan crater region and Titan's 'blandlands' plains.

Afeni Shakur

Afeni Shakur (Alice Faye Williams, 1947-2016), Black Panther Party Harlem leader, self-defending defendant acquitted in the 1971 Panther 21 trial, mother of Tupac Shakur, and founder of the Tupac Amaru Shakur Foundation and Amaru Entertainment.

Afewerk Tekle

Afewerk Tekle (አፈወርቅ ተክሌ, 1932–2012) was an Ethiopian painter, widely called Ethiopia's leading modern artist, best known for the stained glass of Africa Hall, Addis Ababa.

AFEX pretreatment

AFEX pretreatment, also called ammonia fiber expansion, is a thermochemical process treating lignocellulosic biomass with liquid ammonia under pressure, developed at Michigan State University for cellulosic ethanol production.

AFF1

AFF1 (AF4, MLLT2), gene at 4q21.3 encoding a super elongation complex scaffold; fused to KMT2A by t(4;11)(q21;q23), it defines the most common KMT2A fusion in acute lymphoblastic leukemia.

Affair

Affair, also called infidelity, cheating, or non-consensual non-monogamy: hidden romantic or sexual involvement outside a committed relationship, defined by deception and lack of consent, a leading cause of divorce.

Affair (รักเล่นกล)

Affair (รักเล่นกล) is a 2024 Thai girls' love drama on Channel One31, adapted from an online novel by เจ้าปลาน้อย, starring Sonya Saranphat Pedersen and Lukmhee Panyaphat Wongphongsathapon as lovers separated for thirteen years.

Affair of the Diamond Necklace

Affair of the Diamond Necklace (Affaire du collier de la reine), 1784-1786 French court scandal: Jeanne de la Motte's forged-letter con tricked Cardinal de Rohan into buying a 1.6-million-livre necklace for Marie Antoinette, ruining the innocent queen's reputation.

Affair of Tsarevich Alexei

The Affair of Tsarevich Alexei (Дело царевича Алексея) was the 1718 treason trial of Alexei Petrovich, son of Peter I of Russia, who died in prison.

Affandi

Affandi (born Affandi Koesoema, circa 1907–1990) was a self-taught Indonesian Expressionist painter known for squeezing paint directly from the tube onto canvas with his fingers.

Affect (psychology)

Affect (psychology): the experienced feeling tone of mental states, spanning valence (pleasantness) and arousal. Umbrella term over emotion and mood; measured via PANAS and circumplex scales in affective science.

Affect misattribution procedure

The affect misattribution procedure (AMP) is a widely used implicit measure of attitudes, in which reactions to a visible prime are misattributed to a neutral stimulus.

Affection

Affection: fondness or tender feeling for a person or thing; also a philosophical term (Latin affectio, a state or mode of being) used by Aristotle, Spinoza, Kant, and Hume, and a research topic in affection exchange theory (Floyd, 2001).

Affection (2025 film)

Affection (2025) is an American sci-fi horror film, the debut of writer-director BT Meza, starring Jessica Rothe as an amnesiac woman whose memory resets cyclically. Premiered at Screamfest 2025; released May 8, 2026; 79% on Rotten Tomatoes.

Affective computing

Affective computing is an interdisciplinary field combining psychology and computer science, founded by Rosalind Picard at MIT, whose 1997 book argued that natural interaction with computers requires machines to recognize, understand, and express emotion.

Affective memory

Affective memory is the remembering of past emotional experience, a term from Stanislavsky's actor training and from cognitive psychology, where emotion shapes how memories form and are recalled.

Affenpinscher

Affenpinscher, or Monkey Dog (German, "monkey-like terrier"), a German toy breed of ratter turned companion; 9–11.5 in, 7–10 lb, harsh black-to-belge coat, AKC-recognized 1936, FCI Group 2, Banana Joe won Westminster 2013.

Affentheater

Affentheater, German for silly monkey-business behavior, names several works: the 2006 Amigo children's memory-race board game by Stefan Olschewski (Kinderspiel des Jahres recommendation list), the 1984 Noris game So ein Affentheater, Marius Müller-Westernhagen's 1994 album, and Herbert Knebel's cabaret program.

Afferent nerve fiber

Afferent nerve fiber: sensory axons (also called afferent neurons, dorsal root fibers) carrying information from receptors to the CNS via dorsal roots; classified Aα, Aβ, Aδ, C or Lloyd groups I–IV by conduction velocity.

Affero General Public License

The Affero General Public License (AGPL) is a copyleft free software license requiring operators who modify it and run it as a network service to share the source code.

Affidavit

Affidavit: a written statement of fact sworn or affirmed before a notary, Commissioner for Oaths, or other authorized officer, used as court evidence; also called a sworn statement; false statements risk perjury charges.

Affiliate marketing

Affiliate marketing, also called Internet affiliate marketing, is a performance-based arrangement in which publishers earn commissions from merchants when tracked links they place drive sales, leads, or clicks.

Affiliated Hospital of Qingdao University

Affiliated Hospital of Qingdao University (青岛大学附属医院), founded 1898 as a German naval hospital, is a Grade 3A provincial teaching hospital of Qingdao University with five campuses, 5,000+ beds, and 6 national key clinical specialties.

Affine arithmetic

Affine arithmetic is a self-validated numerical computation model, proposed by Comba and Stolfi in 1993, that tracks correlations between uncertain quantities for tighter error bounds than interval arithmetic.

Affine connection

An affine connection is a differential-geometric structure on a smooth manifold that defines covariant derivatives, parallel transport, and geodesics; Hermann Weyl introduced it in 1918.

Affine geometry

Affine geometry is the branch of geometry studying properties preserved by affine transformations, which keep parallelism and ratios along lines but not distance or angle.

Affine group

The affine group of a vector space is the group of all affine transformations, maps x ↦ Ax + b combining invertible linear maps with translations.

Affine Lie algebra

An affine Lie algebra, also called an affine Kac-Moody algebra, is an infinite-dimensional Lie algebra that is a central extension of the loop algebra of a semisimple Lie algebra.

Affine plane

An affine plane is an incidence structure of points and lines in which any two points lie on exactly one line and parallel lines exist.